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73
BU Score
Strong

TK-App

4.8 ✍️ Editor
✍️ BU Analytics Review

TK-App is an iOS app from Techniker Krankenkasse (TK) in the Health & Fitness category, currently rated 4.8★ across 1,137 ratings. Initial signal reads as mixed reviews — supporters praise core features while critics cite stability/value gaps.

Our BU Score puts it at 73Strong (healthy traction). For a Health & Fitness app, that means healthy traction.

Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.

📊 Performance Tracking LIVE

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idle
0%
Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
0
since first record
Range:

💰 Forecast Revenue / mo

MODEL
Revenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Excellent rating (4.8★)METRIC
+$2,200
excellent appREVIEW
+$1,500
Low install base (1,137 ratings)METRIC
+$1,500
Mature app (9y old)METRIC
+$1,500
Ad-supported / freemiumMETRIC
+$600
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.
💚Sentiment Over Time↑ green = positive · ↓ red = negative
Oct 24
Aug 25
Sep 25
Feb 26
Mar 26
Apr 26
May 26

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
💾 615 MB🔞 12+📱 iOS 18.0+🔖 v9.6.0🔄 updated 2w ago🌐 EN, DE📂 Health & Fitness💰 Paid🚀 Launched 2017 (9y old)

📝 About this app

“Die Techniker” provides its customers with a digital all-purpose tool. For example, you can use this app to upload your receipts for reimbursement, view existing sick notes, or do something for your fitness while collecting bonus points."

FEATURES

- Protection of sensitive data through secure login (e.g. no jailbreak allowed)
- Transmission of sick notes and documents
- Send messages to the Techniker
- Receive letters from the Techniker
- Use the TK Bonus Program completely digitally
- TK-Fit with access to Apple Health or Fitbit
- Overview of prescribed drugs of the last six years
- Apply for reimbursement of costs for medicines, vaccines, osteopathy and health courses

SECURITY

As a statutory health insurance company, we are committed to the best possible protection of your health data. That's why we check your identity when setting up TK-App on your smartphone. You can either identify yourself online using your ID card and PIN via the Nect Wallet app or by entering an activation code. We‘ll send you the activation code via post. You can find everything else about our security concept at www.tk.de/tk/942778

Note: The use of TK-App with jailbroken devices is generally not possible.

FURTHER DEVELOPMENT

We are continuously adding new features to TK-App - your ideas and hints help us most. Write us directly and anonymously via the feedback function in TK-App.

BONUS & TK-Fit

Membership in a football club, regular check-ups at the dentist, the non-smoking course after New Year's Day - all these things earn points for the TK Bonus Program. And thanks to the connection to Apple Health or Fitbit, you'll receive points for many other activities.

TK-SAFE

With TK-Safe you have all relevant health data at a glance: Your visits to the doctor, diagnoses, medication, vaccinations, preventative medical checkups and much more.

Please note that TK-Fit and TK-Safe are not available in English yet.

REQUIREMENTS

For the TK-App:
- TK customer
- iOS 18 or higher
- No device with modified operating system, e.g. Jailbreak (For more information, see www.tk.de/tk/942782)

For TK-Fit:
- Step counting using Apple Health or Fitbit and your smartphone or a compatible fitness tracker (for information on TK-Fit, see www.tk.de/tk/938122)

ACCESSIBILITY

We aim at providing you an app that is as barrier-free as possible. You can find the accessibility statement at https://www.tk.de/techniker/2137808.

🆕 What's New · v9.6.0

Device registration is now also possible via smsTAN.

TK-Safe:
- Order the PIN for your insurance card conveniently using Nect Wallet App.
- Your health folders for chronic conditions are available. Manage your documents, health metrics and much more centralized in one place.
- The document preview is now also available in editing mode.

Bugfixes:
- Minor bugs have been fixed.

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
TK-App
Developer
Techniker Krankenkasse (TK)
Bundle ID
de.tk.tk-app
App Store URL
Open in App Store
Category
Health & Fitness
Content rating
12+
Languages
EN, DE

Company

Website
Not found
Tagline
Today
Description
Find apps and games for iPhone, iPad, Mac, and more on the App Store.
Founded
Not found
HQ / Address
Not found
Employees
Not found
Logo
OG image

Revenue

Verified revenue / mo
Not found
AI revenue estimate / mo
Not found
AI annual estimate
Not found
ML model estimate / mo
$12.6K/mo
Top-grossing rank
Outside top 100 in US Health & Fitness
All-time revenue
Not found
Pricing
Not found

Founder

Name
Not found
X / Twitter
Not found
LinkedIn
Not found
GitHub
Not found
X followers
Not found
Public statements
Not found

Funding

Total raised
Not found
Last round
Not found
Investors
Not found
Crunchbase
Not found
AngelList
Not found

Press & Links

Articles found
Not found
Listed on
Not found
Blog
Not found
Press / News
Not found

Contacts & Socials

Socials
Not found
Email
Not found
Phone
Not found
Contact page
Not found
About page
https://apps.apple.com/us/iphone/story/id1895675718
AI Revenue EstimateCONFIDENCE: HIGH
The TK-App by Techniker Krankenkasse (TK) is a service application for its members, offering features like submitting documents, managing bonus programs, and accessing health records. As a statutory health insurance provider in Germany, TK's revenue comes from member contributions, not from direct in-app purchases or subscriptions within the TK-App. Therefore, the app itself does not generate direct revenue.
Sources mentioned: Sensor Tower, Statista, Adapty, Reddit, App Store
Recent App Store Reviews16 latest · avg 3.31★ · 43.8% 5★ · 25.0% 1★
5★
7 (44%)
4★
1 (6%)
3★
2 (12%)
2★
2 (12%)
1★
4 (25%)
+0 ratings/week
Praise: great ×4 best ×1 perfect ×1 excellent ×1 awesome ×1Complaints: bug ×1
Top positive
★★★★★ Sick app
Favorite app on my phone…
★★★★★ Einfach eine tolle moderne Krankenkasse
Einfach super, dass man so vieles einfach online machen kann bei der TK. Grade eine Krankmeldung hochgeladen, super einfach.…
Top negative
★☆☆☆☆ Gültigkeit und Definition Kalenderjahr
Die Gültigkeit und das Kalenderjahr für die Erfassung startet im Monat der Zustimmung zu den Datenschutzbestimmungen der App, nicht mit der Mitgliedschaft oder des Kalenderjahres. Das ist nicht nachvollziehbar und bedeutet, dass alle die sp…
★☆☆☆☆ Buggy, nearly unusable
For the past year, app submission of sick notes has not worked, leading to enduring administrative hassles. When I try to submit I get an error “Your entry contains invalid characters”, no matter how many times I retype my information (on a…
📈Ratings growth1,137 ratings+113600% lifetimeShow 3-year history estimate ▾Jul 2017Aug 2024May 2026
Tracked (18 weeks) Pre-tracking estimate (36 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
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